drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700

Checking of the second colorbuffer was skipped on r700, because
CB_TARGET_MASK was 0xf. With r600, CB_TARGET_MASK is changed to 0xff,
so we must set the number of samples of the second colorbuffer to 1 in order
to pass the CS checker.
The DRM version is bumped, because RESOLVE_BOX is always rejected without this
fix on r600.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 8866937..f37676d 100644 (file)
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -63,6 +63,7 @@ struct r600_cs_track {
        u32                     cb_color_size_idx[8]; /* unused */
        u32                     cb_target_mask;
        u32                     cb_shader_mask;  /* unused */
+       bool                    is_resolve;
        u32                     cb_color_size[8];
        u32                     vgt_strmout_en;
        u32                     vgt_strmout_buffer_en;
@@ -321,6 +322,7 @@ static void r600_cs_track_init(struct r600_cs_track *track)
                track->cb_color_tile_offset[i] = 0xFFFFFFFF;
                track->cb_color_mask[i] = 0xFFFFFFFF;
        }
+       track->is_resolve = false;
        track->nsamples = 16;
        track->log_nsamples = 4;
        track->cb_target_mask = 0xFFFFFFFF;
@@ -359,6 +361,8 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
        volatile u32 *ib = p->ib.ptr;
        unsigned array_mode;
        u32 format;
+       /* When resolve is used, the second colorbuffer has always 1 sample. */
+       unsigned nsamples = track->is_resolve && i == 1 ? 1 : track->nsamples;
 
        size = radeon_bo_size(track->cb_color_bo[i]) - track->cb_color_bo_offset[i];
        format = G_0280A0_FORMAT(track->cb_color_info[i]);
@@ -382,7 +386,7 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
        array_check.group_size = track->group_size;
        array_check.nbanks = track->nbanks;
        array_check.npipes = track->npipes;
-       array_check.nsamples = track->nsamples;
+       array_check.nsamples = nsamples;
        array_check.blocksize = r600_fmt_get_blocksize(format);
        if (r600_get_array_mode_alignment(&array_check,
                                          &pitch_align, &height_align, &depth_align, &base_align)) {
@@ -428,7 +432,7 @@ static int r600_cs_track_validate_cb(struct radeon_cs_parser *p, int i)
 
        /* check offset */
        tmp = r600_fmt_get_nblocksy(format, height) * r600_fmt_get_nblocksx(format, pitch) *
-             r600_fmt_get_blocksize(format) * track->nsamples;
+             r600_fmt_get_blocksize(format) * nsamples;
        switch (array_mode) {
        default:
        case V_0280A0_ARRAY_LINEAR_GENERAL:
@@ -799,6 +803,12 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
         */
        if (track->cb_dirty) {
                tmp = track->cb_target_mask;
+
+               /* We must check both colorbuffers for RESOLVE. */
+               if (track->is_resolve) {
+                       tmp |= 0xff;
+               }
+
                for (i = 0; i < 8; i++) {
                        if ((tmp >> (i * 4)) & 0xF) {
                                /* at least one component is enabled */
@@ -1288,6 +1298,11 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
                track->nsamples = 1 << tmp;
                track->cb_dirty = true;
                break;
+       case R_028808_CB_COLOR_CONTROL:
+               tmp = G_028808_SPECIAL_OP(radeon_get_ib_value(p, idx));
+               track->is_resolve = tmp == V_028808_SPECIAL_RESOLVE_BOX;
+               track->cb_dirty = true;
+               break;
        case R_0280A0_CB_COLOR0_INFO:
        case R_0280A4_CB_COLOR1_INFO:
        case R_0280A8_CB_COLOR2_INFO:

diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index bdb69a6..fa6f370 100644 (file)
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -66,6 +66,14 @@
 #define        CC_RB_BACKEND_DISABLE                           0x98F4
 #define                BACKEND_DISABLE(x)                              ((x) << 16)
 
+#define R_028808_CB_COLOR_CONTROL                      0x28808
+#define   S_028808_SPECIAL_OP(x)                       (((x) & 0x7) << 4)
+#define   G_028808_SPECIAL_OP(x)                       (((x) >> 4) & 0x7)
+#define   C_028808_SPECIAL_OP                          0xFFFFFF8F
+#define     V_028808_SPECIAL_NORMAL                     0x00
+#define     V_028808_SPECIAL_DISABLE                    0x01
+#define     V_028808_SPECIAL_RESOLVE_BOX                0x07
+
 #define        CB_COLOR0_BASE                                  0x28040
 #define        CB_COLOR1_BASE                                  0x28044
 #define        CB_COLOR2_BASE                                  0x28048

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 27d22d7..8c593ea 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -63,9 +63,10 @@
  *   2.19.0 - r600-eg: MSAA textures
  *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
  *   2.21.0 - r600-r700: FMASK and CMASK
+ *   2.22.0 - r600 only: RESOLVE_BOX allowed
  */
 #define KMS_DRIVER_MAJOR       2
-#define KMS_DRIVER_MINOR       21
+#define KMS_DRIVER_MINOR       22
 #define KMS_DRIVER_PATCHLEVEL  0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);

diff --git a/drivers/gpu/drm/radeon/reg_srcs/r600 b/drivers/gpu/drm/radeon/reg_srcs/r600
index f93e45d..20bfbda 100644 (file)
--- a/drivers/gpu/drm/radeon/reg_srcs/r600
+++ b/drivers/gpu/drm/radeon/reg_srcs/r600
@@ -744,7 +744,6 @@ r600 0x9400
 0x00028C38 CB_CLRCMP_DST
 0x00028C3C CB_CLRCMP_MSK
 0x00028C34 CB_CLRCMP_SRC
-0x00028808 CB_COLOR_CONTROL
 0x0002842C CB_FOG_BLUE
 0x00028428 CB_FOG_GREEN
 0x00028424 CB_FOG_RED